Analysis
- max time kernel
900s - max time network
464s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-fr - resource tags
- submitted
25/08/2026, 07:55
General
- Target stresserka c2/doomstresser-c2-ddosiara.exe
- Size 229KB
- Sample260825-jsdj4aycmf
- SHA256 00bc0bbf9e1fc390c44b18e674faed05f452332bae1a96b85bcd74530d34e771
Malware Config
Extracted
-
umbral
-
v1.3
-
https://discord.com/api/webhooks/1481679436427296819/9O-aXlkzbRp2jbvhSekh5_nOs25zvm2buzGuIyD0DFLoHYSTeqCgPMg6tnAxjxjIraWD
Signatures
- Family: Umbral
Umbral stealer is an open-source modular stealer written in C#.
- Detects Umbral payload 2 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 43 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\stresserka c2\doomstresser-c2-ddosiara.exe"C:\Users\Admin\AppData\Local\Temp\stresserka c2\doomstresser-c2-ddosiara.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4168-1-0x00007FFA6093F000-0x00007FFA60940000-memory.dmp
memory/4168-0-0x000001FC947C0000-0x000001FC94800000-memory.dmp
memory/4168-2-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-3-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-4-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-6-0x000001FCAF1D0000-0x000001FCAF2D2000-memory.dmp
memory/4168-7-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-5-0x000001FC966A0000-0x000001FC966E2000-memory.dmp
memory/4168-8-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-9-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp
memory/4168-10-0x00007FFA607B0000-0x00007FFA61154000-memory.dmp